Abstract Because of the presence of sporadic high-intensity measurement noise (outliers), an adaptive algorithm for the robust estimation of parameters of linear dynamic discrete-time systems is proposed in this paper. First, the sorted data versus the normal quantiles is plotted, called QQ-plot. Next, the ε-contaminated normal distribution of noise is adopted. Then, a data classification procedure based on the QQ-plot approach, combined with the robustified data winsorization technique, is developed; the estimation of the unknown noise statistical parameters is solved. Moreover, an iterative procedure for estimating the contamination degree ε, which originated from an ML classification, is also proposed. Thus, a ε-contaminated noise distribution is estimated and, the suboptimal maximum likelihood criterion is defined, and the system-parameter estimation problem is solved robustly, using the proposed recursive robust parameter estimation scheme. Finally, these parameters are used to estimate water level in the steam drum and residual of the steam-drum water level sensor.
, , , , (2-2004)

Abstract- investigation of the use of continues wavelet transform (CWT) method to late time response analysis for detecting on body concealed threat objects proposed in this paper. The transient backscattered mechanisms of on body concealed weapons target signatures are studied using the wavelet analysis technique in which signal processing algorithm is developed and the Morlet wavelet applied to extract and analyses the re-radiated transient response of concealed targets. Experimental work was done by using simple and complex objects such as wire and handgun, Wavelet analyses of backscattered data from various objects are presented, the results show that the Continues wavelet transform (CWT) has the ability to detect and discriminate between the hidden-on body objects.
, (7-2019)

Ad Hoc networking allows portable devices to establish communication independent of a central infrastructure. The issue of routing in a mobile ad hoc network becomes a challenging task since the mobile nodes are free to move randomly. There are several ad hoc routing protocols, such as Ad hoc On-Demand Distance Vector (AODV), Dynamic Source Routing (DSR), Optimized Link State Routing (OLSR) and Zone Routing Protocol (ZRP), which propose solution for routing within a mobile ad hoc network. In this paper the ad hoc routing protocol AODV is used and modified to examine the interconnection between a mobile ad hoc network and the Internet, for this purpose Network Simulator 2 (NS-2) has been used. Moreover, three proposed approaches for gateway discovery are simulated.
Sulaiman Khalifa Yakhlef, Nasaraldian Ambark Shashoa, (10-2013)